Paper-box machine.



L. C. MALTBY.

PAPER BOX MACHINE.

APPLICATION PILBD 11130.15, 1903.

2 SHBBTS-SHEET 1.

Ck MMM mau/:2%

Patented A111127; 1909.

L. C'. MALTBY.

PAPE@ BOX MACHINE. APPLICATION FILED 13110.15, 190s.

4 919 ,905. Patented Apr. 27, 1909.

23 l 2 SHEETS-SHEET 2. 17

| .I I l Witnesses urirrnn sfrnrns PATENT oniricae LEWIS C. MALTBY,0F.\-'AS HINGTON, DISTRICT 0F COLUMBIA.

PAPER-BQX MACHINE.

' Specification of Letters Patent.

y Patented April 27, 1909.

ApplicationiledjDecember 15, 1903. Serial No. 185,313.

have invented certain new and useful Improvernents in Paper-BoxMachines, of which the following is a s eciiication.

My invention re ates to apparatus for the manufacture of boxes of paperor other flexible material, and embodies a die and counter die, thelatter supported in a fixed position and adapted to receive the formerand to turn down upon the body of a box supported thereby, the edge of adisk, as fully setfo'rth hereinafter and as illustrated in thevaccompanying drawings, in which- Figure lis a vertical elevation of anapparatus embodyin my invention; Fig. 2,. a verticalsectionafelevation"drawn .to an enlarged scale, showing the main partsof the apparatus. v h' Before referring to the details of the mechanism,I will describe the operations to be performed in connection with' thecy drical paperbody A, .made in any' suitab e man- .ner, and a sheet ofpaper C, from which one '.above the die B end of the box. is to'be made.The said cylindrical bodyA has deposited upon it'l near one end and: onthe outside, a layer 1 of cement, preferably lue, and the body A ismounted upon a die d3 preferably heated. The sheet of paper C is carriedto a position and between an annular movable holder F having a cutterprojection 2 and an annular stationary cutter E, and by the upwardmovement of the cutter 2, a disk is"sheared from the sheet C of adiameter exceeding that of the bodyA,

and the latter with the die B is thencarried `uFpward through an opening3 in the holder throu h a' corresponding opening in a counter- 'e K,which openingis surrounded by a crimping 'ring having a beveled loweredge, and 1n said opening is a sliding block J l l and the V disk is'turned: outward movable verticallyfin a -recess in the die K, so .thatas the die-'B meets the disk, the latter is lock'J and as'it is carried.upward into the-recess in the die K, the edge of the and compressed ontothe outside of the body A With-a ressure that, attens all the foldsforme l by bending the disk, producing 'a comparatively smooth flange,which under the mu- 55 ence of theheat and pressure'is cemented by thecement to the body The die B then pressed between the top ofthe die B-to draw yout and form a flange at right angles' to the face of the disk,I have found from numerous tests that this cannot be practicablyeffected 'in ilanging disks of paper. This results from Vthe 4fact that'the paper almost invariably `breaks at the bending point; in fact itcannot be drawn like metal. To remedy this defect I provide meanswhereby topermit a limited outward flow or feed of the paper in the actof bending and this has proved to be completely successful even withcheap short-fiber papers or boards. This is effected by forming anannular rib 4 upon the lower face of' the block J and a correspondingannular recess 5 in the upper face of the die B and ing the block J sothat it can yield slightly upward as the ange `is turned down. Thesprings 16 which support the block J to secure the described result mustexert only suflicient pressure to indent the sheet as the dies arebrought to ether, butto yield when the edge is turned own, allowing thestock that was taken up in the indentation to feed out across the edgeof the die B. The presence of the body of the box on the die as the angeis turned down also tends to prevent tearing or fracture as the sheet isdrawn over the end of the body which is soft and yielding.

The arts above described may be constructed suitable. manner, but asshown they are mounted upon anupright frame or casing L in whichslides'vertically a lcarrier Msuitably guided Aand supported, with a:roller 6, which bears'upon the periphery of a cam N mounted upon a shaft7 turning in bearings on the frame'and driven in. anyk suitable manner.lAcross a slot or recess in the carrier M extends a shaft 8 with whichswin s a brackety or holder P supporting thedie l and at the end of theshaft 8 is an'arm 9 and arrangedto operate in any' supportcarrying acrank pin 10 from which a conf-1.

necting rod 12 extends downward andis'- the connecting rod 12downwardandswing partof the frame and is secured therein y al set screw45, and the cutter holder is pivoted by a pivot pin 13 to a bracket 14extending from the die K the axis of the pivot pin bei on the same planeas the lower face of the cutter E, so that the cutter carried by theholder F will effect a p'ro ressive shearing of the sheet and secure acPeaner cut with the exertion of less power than if it was` maintainedin a horizontal position and then carriedupward.

Th block J is hollow and has a'central. tubular stem 114 extendingthrough a block 15 secured in the die K and this block 15 -is recessedto receive s rings 16 which tend to carry the block J. (lbwnward to anextent limited by an adjustable collar -or nut 17 turning upon thethreaded end of Ithe stem 114. The block 15 as shown is threadedexternally to fit a threaded socket of the block K and may be turned toraise or lower it in the socket to vary the positionlof the parts whichit carries and to vary 'the tension ol the springs 16. j

The upward movement of the carrier M,

holder and die B isefected' by the rotation of the cam N, aprojectionupon which lifts these arts and as the'projectlon asses from the ro er6, said parts are carrie downward by the action of the weight R throughits connections with the crank arm 9. When, however, the die B hasbeeniwholly removed from below the cutters, it is desirable to -Y swingoutward the holder P and the lower die, that the box may beremoved; andthis swinging movement ofthe parts is secured y by providing theconnecting rod 12 with an adjustable stop shown as a nut 18 which, bylcontact with a shoulder 19 on the frame, causes the arrest of theconnecting rod 12, while the descent of the carrier M and shaft 8 causesthe latter to' be turned to swing the holder outward;` After the box isremoved, which may be done by hand, another box body A vis placed uonthe lower die and as the cam N rotates t e carrier M and its shaft 8are lifted, the weight tending to hold the rod 12 down and insuring theinward swing of the holder P until the lower die is in a verticalposition, when a lug 30 on the holder P will make contact with thevertical face 31l ofthe carrier, and the carrier, holder and die willmove upward as before.

Thev cutter holder F may be moved in any Isuitable manner to cut thedisk from the sheet before the die B moves fully through the opening 3.As shown, a'rod 32 slides in 'al guide 33'secured to the frame and bearswith its up er end a ainst the lower side of the holder A rol er 44 atthelower end of the rod makes contact with the cam N which lifts the rodbefore it acts to lift the lower die. A spring 34 serves to carry downthe holder F to the extent permitted bythe descent of the rod.

Any suitable means, electrical or otherwise, may be employed for heatingthe parts. As shown, the hollow die B has within it a coil pipe 119communicating with an inlet port 20 and outlet port 21 in the holder P,with which ports may be connected flexible ipesfor the admission anddischarge of the lieated fluid, as steam or hot water. The block J issupplied with a like heated fluid througha short pipe 22 passing througha plug at'the top of the stem 114 and a dis charge pipe 23 extendsnearly vto the bottom of the 'chamber in the block, so that in the useof steam, if there should be any water in said chamber, it willlowreadily up 'in the pi e 23 and be discharged'f. I

il have not shown any means for feeding .the sheet lof paper insuccessive steps after the different cuts, as any suitable feedingdevicesmaybe'employed, or the sheet may be fed by hand.v

While l prefer to hinge the lower cutting ring so as to get aprogressive shearing effect as described, it may be carried up and downwhile its horizontal/,position is maintained. lt will'further be seenthat while l have illustrated dies adapted to operate in connection withcylindrical box bodies, the parts will, of course, be shaped tocorrespond to the shape of the bodies of the boxes to be made. It willfurther be seen that although I prefer to arrang'e the cutters so as toshear or cut the 1 disks 1n/proper position to be met by the upwardmovement of the box body, the said disks may be otherwise cut andpresented.

Without limiting myself to the precise construction and arrangement ofparts described, 1 claim as my invention:

1. In amachine for Hanging and applying bottoms tothe bodies of paperboxes, the

combination of adieadapted to be inclosedby the hollow box body, acounterdie, recessed to receive the end of the body die, its box body,and the flange of the bottom disk, means for supporting the disk betweenthe dies, a recess in the end of the body die adjacent to the sidesthereof, a movable block extending into the counter die and providedwith a rib adapted to the recess of the body die, and springs bearing onthe block and adapted to yield as the body die enters the counter die,for the purpose described.

2. The combinatv on in a box making machine, of a recipro'ating die Badapted to the stationary cutter, su stantially as set forth.

Y in the carrier and sup 3. Th combination of a frame, counter diecarrier, a cam for vertically reciprocating the carrier, a holderconnected to a shaft rocking orting the die B, a crank arm upon said saft, av weighted connecting rod pivoted to the said ycrank arm, and astop for arresting the movement of the rod as the carrier completes itsdownward movement, substantially as set forth.

h4l. T-he combination with the frame, counter die, carrier, 4and .oerating cam, of a holder supporting the die B, a rock shaft turning inthe carrier and connected to said holder and provided with a crank arm,a weighted vlever pivoted to the frame and connected with said crankarm, a connectinv rod, and, means for arresting the downward movement ofthe connecting rod prior to the completion of the downward movement ofthe carrier, substantially as set forth.

' 5. The combination of a counter die, a block, sliding in said counterdie and having a chamber for receiving a heated fluid, an inlet pipecommunicating with said chamber, and an outlet pipe extending to thebottom of the chamber, substantially as set forth.

6. The combination of the sliding and swinging die B, counter die, xedcutter, movable cutter, and a sliding rod for operating the movablecutter, set forth.

7.- Ina box machine the combination with a frame, of a carrier slidingthereon, a rock substantially as I shaft supported in bearings'on saidcarrier, means'for reciprocating the carrier and rocking the shaft, aprimary die carried by the shaft to move therewith, a blank-holdingmember adapted t'o embrace the die, ,ahollow counter die and means forsupporting the same, and a crimping ring surrounding the opening of thecounter die.

8. In a box machine, the combination with a frame, of a primary slidingand rocking blank receiving die sustained thereby, means forreciprocating the die, a secondary die, a crimping ring surrounding thesecondary die, and means for sustaining the said ring.

- 9. The combination of the sliding and swinging die B, a cam operatingthe same, a counter-die, fixed cutter, movable cutter, and a sliding rodfor operating the movable cutter arranged to be operated by the cam.

10. The combination of the 'sliding and swinging die B, a cam operatingthe same, a counter-die, fixed cutter, movable cutter,

and a'sliding rod for operating the movable cutter arranged to beoperated by the cam, substantially as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LEWIS C. MALTBY.

Witnesses:

CHARLES E. FOSTER, GAY N. FREEMAN.

